For Bergson, interior life is temporal and not spatial in nature. In the "psyché", the qualitative multiplicity of psychological states modifies itself all the time in a continuous and solidary succession; if something seems to solidify and to fragment it is because conscience is represented, illusorily, as if it existed in a homogeneous and spatial time. In the root of the problem lies the confusion that is done between time and space when it is not noticed that the psychological states and all psychic life are exclusively of a temporal nature. Starting from this confusion, one has the representation of oneself and a quantitative multiplicity of psychological states as if they were of a physical nature, as psychophysics did, because psychic life is conceived as existing in an illusory spatial time.